【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
[Vacuum Tube Preamplifier] Douk Audio T4 PRO can be used as MM phono preamplifier, vacuum tube audio preamplifier, headphone amplifier, with powerful functions in mini size, home/desktop audioSpecially designed to suit different system requirements.
[MM Phono Input] Converts phono signal to line level signal, uses low noise integrated circuit and high quality components to ensure clear and clean sound. [3.5mm AUX Input] Amplifies low-level audio signals from smartphones, tablets, PCs, MP3, etc., making it easier to drive amplifiers and active speakers, greatly improving sound quality.
[3.5mm headphone output and perfect circuit design] The T4 PRO preamplifier also incorporates a classic headphone amplifier circuit (2*NE5532), which can easily drive 32-300Ω headphones.vinegar. Affordable and advanced architecture, TI TPA5430 for power management, TL071 + JRC2068 phono preamp circuit, etc., enjoy HiFi analog sound and top-notch design at an unbeatable low cost.I can have it.
[JAN5654 Vacuum Tube] Imported JAN5654 Vacuum Tube and Vintage Warm Sound: Comes with JAN5654 Vacuum Tube by default, which provides detail, clarity, immediacy, richness, dynamic, and tones.Everything has been improved, especially the human voice, which is much better than the 6J1 series.
[Note] 1. Priority is given to 3.5mm AUX input.If using the MM phono input, please make sure the AUX cable is unplugged. 2.Stereo RCA and 3.5mm headphone jack can be output at the same time, and the knob also controls the volume of the two outputs at the same time.
